Plugs into the cigarette lighter with a decent length cable to reach all my Jeep tires. Easy to use, fills a tire fairly quickly for a small, compact size, small enough to keep in the car at all times, and has plenty of attachments for various things like floats or balls. Excellent value for money and quality. Also has a pump hole clip on the tire stem so you don't have to constantly bend down while the tire is being inflated.